<div class="toc">
<ul>
<li><a href="#start-with-header-other-than-one">Start with header other than one.</a></li>
<li><a href="#header-3">Header 3</a><ul>
<li><a href="#header-4">Header 4</a></li>
</ul>
</li>
<li><a href="#header-3_1">Header 3</a></li>
</ul>
</div>
<h3 id="start-with-header-other-than-one">Start with header other than one.</h3>
<h3 id="header-3">Header 3</h3>
<h4 id="header-4">Header 4</h4>
<h3 id="header-3_1">Header 3</h3>